Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - base4.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 29877-9124a6ce27) Lines: 1697 1846 91.9 % Date: 2025-01-18 09:08:44 Functions: 170 185 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Z_dcba_rec	0
Z_ppgle	0
ext_pow	0
famat_Z_gcd	0
famat_idealfactor	0
famat_to_nf	0
idealHNF_Z_factor	0
idealapprfact	0
idealpseudomin_nonscalar	0
nfdivmodpr	0
nfkermodpr	0
nfpowmodpr	0
nfsolvemodpr	0
to_famat	0
vecpow	0
err_divexact	7
hnf_QC_QC	7
idealmin	7
nfmulmodpr	7
ramified_root_simple	7
idealappr	14
idealappr0	14
not_in_ideal	14
chk_vdir	21
hnf_Q_Q	21
idealintersect	21
idealismaximal_mat	21
mat_ideal_two_elt2	21
ZV_cba	28
in_ideal	28
trivial_merge	28
idealaddmultoone	35
idealismaximal_int	42
idealtwoelt2	42
ZV_cba_extend	49
idealdiv0	56
matreduce	63
hnf_Z_QC	70
idealaddtoone0	70
idealmul0	70
hnf_Q_QC	77
hnf_Z_ZC	77
idealismaximal	77
idealismaximal_i	77
idealcoprime	84
nfV_eltembed	84
nfV_idealhnf	84
nfweilheight	84
nfweilheight_i	84
isideal	91
vec_mulid	91
idealaddtoone	98
sunits_makecoprime	98
nf_coprime_part	126
gpidealfactor	182
idealhnf0	413
idealprodprime	525
idealhnf	595
famat_to_Fp_coprime	693
idealprod	826
vecinv	826
vecdiv	903
idealprodval	1819
idealtwoelt0	2485
idealpow0	2499
idealdown	3038
idealispower	3926
idealdivexact	5034
gpidealval	7119
ramified_root	7789
idealsqrtn_int	7796
famat_div_shallow	10304
make_integral	10920
_mul	11363
idealdivpowprime	11971
nf_get_Gtwist1	12597
twistG	12639
famatV_factorback	13765
idealred_elt	13808
idealmulred	17207
idealaddtoone_i	17605
pr_inv	17821
famat_to_nf_moddivisor	20118
ext_inv	20406
famat_sub	20937
famat_sqr	22915
idealfactor_partial	25508
famat_inv_shallow	26969
Q_nffactor	28177
prV_e_muls	28187
_idealmulred	28570
ext_sqr	33863
_idealsqrred	35648
_sqr	35648
idealcoprimefact	37212
pr_inv_p	38397
idealsqr	38896
idealsqr_aux	38896
idealdiv	39316
famatV_zv_factorback	46751
idealredmodpower	49167
famat_remove_trivial	53791
idealapprfact_i	54037
pr_uniformizer	58169
famat_pow	60642
ext_mul	60748
prV_primes	61075
factorbackprime	61534
famat_pow_shallow	62035
addmul_mat	65279
idealHNF_inv	68392
idealpowred	80261
idealadd	81609
prV_lcm_capZ	81995
famat_mulpow_shallow	88308
p_makecoprime	94862
idealtwoelt	96818
RM_round_maxrank	97411
idealredmodpower_i	98320
idealnorm	104631
idealinv	114133
get_random_a	117236
famat_mulpows_shallow	118547
nf_to_Fp_coprime	120162
famat_pows_shallow	123141
to_Fp_coprime	123340
idealred0	138645
nf_get_Gtwist	138652
idealpseudomin	142933
append	151930
famat_add	158601
famatsmall_reduce	176592
vecsqr	185983
Q_to_famat	197145
famat_inv	199362
famat_div	200154
famat_mul_shallow	200583
idealHNF_inv_Z	210479
ok_elt	223369
idealHNF_factor	239921
mat_ideal_two_elt	249753
idealmulelt	264958
idealfactor	267828
idealfactor_limit	268221
idealpows	274611
idealsqrprime	285648
idealHNF_Z_factor_i	285670
idealHNF_factor_i	285671
famat_reduce	295921
Z_to_famat	376355
idealnumden	379555
Z_cba	413000
famat_mul	447421
idealHNF_mul	469903
idealmul	506109
idealmul_aux	506110
Z_ppio	532903
ZM_famat_limit	568191
idealaddtoone_raw	713504
_idealaddtoone	731110
idealhnf_two	738543
idealmulpowprime	767395
idealpow	888539
idealpow_aux	888542
idealHNF_mul_two	922905
idealpowprime	1196276
idealpseudominvec	1204363
idealpseudored	1285445
idealhnf_principal	1309400
lcmuu	1588380
idealhnf_shallow	1720841
famat_makecoprime	2003842
to_famat_shallow	2688547
pr_hnf	3580358
Z_cba_rec	3766434
idealHNF_norm_pval	4043438
zk_pvalrem	4094733
nf_remove_denom_p	4140562
idealHNF_val	4178983
Fl_invgen	5711867
idealval	9397745
idealtyp	15840749
vecmul	15998834
Z_ppo	18157181
u_ppo	54219546

Generated by: LCOV version 1.16